What Is a Chicane in F1? Corners That Slow Cars

A chicane in F1 is a tight sequence of corners that turn in alternating directions, forming an S or Z shape, built to force cars to slow down. Instead of one straightforward bend, a chicane makes the driver flick left then right (or right then left) in quick succession, braking hard on the way in and getting the car straight before the next turn. Its main job is safety: chicanes scrub speed where a flat-out section would otherwise send cars into a corner, a wall, or a crowd area far too fast.

What is a chicane in F1?

Picture a fast straight ending in a wall or a slow corner. Left alone, cars would arrive at frightening speed. A chicane interrupts that straight with a short zig-zag, two or three corners in opposite directions, so drivers have to brake and thread the car through before continuing. The Formula 1 glossary describes it as exactly this kind of tight, artificial sequence.

The defining feature is the change of direction. A normal corner turns once. A chicane turns one way, then immediately back the other, which unsettles the car and forces the driver to reset the balance between the two apexes. That combination of heavy braking and rapid direction change is what makes chicanes technically demanding.

Most chicanes are deliberately added to a layout rather than being a natural part of the terrain. When a circuit needs to cut speed at a specific point, inserting a chicane is quicker and cheaper than redesigning a whole section.

Why do F1 tracks have chicanes?

Safety is the headline reason. Grand prix cars have grown steadily faster, and stretches that were once flat-out became too dangerous as speeds rose. Governing-body circuit safety standards push tracks to manage top speed into high-risk zones, and a chicane is the standard tool for it. Slow the car before the danger, and the run-off, barriers and braking distances all become manageable again.

But safety is not the only payoff. Chicanes tend to do three other useful things:

• Create overtaking. A hard braking zone at the end of a straight is a natural passing spot, as one car tries to out-brake another into the first apex.
• Add challenge. Threading two opposing corners cleanly, on the limit, separates the precise drivers from the merely fast ones.
• Shape the lap. A chicane lets designers tune where cars accelerate and brake without rebuilding the circuit, which matters for both racing and lap-time targets.

The trade-off is that some fans dislike chicanes for interrupting flow and killing a great corner’s rhythm. A few historic chicanes have been softened or removed over the years for exactly that reason, balancing safety against the character of the lap.

Chicane vs a normal corner: what’s the difference?

The two are easy to mix up, so here is the clean comparison. The key is direction changes and intent.

Feature	Normal corner	Chicane
Direction	Turns once, one way	Alternates: left-right or right-left
Number of apexes	One	Two or three in quick succession
Main purpose	Route the track	Deliberately reduce speed
Typical location	Anywhere on the lap	End of a straight or a fast section
Driver demand	Line and exit speed	Balance through opposing turns

A single tight hairpin slows cars too, but it is not a chicane, because it only turns one way. The alternating geometry is what earns the name.

What are the most famous chicanes in F1?

Two circuits own the reputation. Monza, the fastest permanent track on the calendar, relies on chicanes to keep its speeds in check. Its Variante del Rettifilo, the first-corner chicane, breaks up the long start straight and produces some of the season’s most dramatic opening-lap braking. Further round, the Variante Ascari is a flowing chicane complex that rewards commitment and rhythm, widely regarded as one of the best sequences in the sport.

Monaco offers the other classic. The Nouvelle Chicane sits right after the tunnel, where cars burst into daylight at high speed and must brake hard for a tight left-right. It is one of the few genuine overtaking spots on a circuit famous for being nearly impossible to pass on, and a misjudged lunge there has ended plenty of races in the barriers.

These examples show the two faces of the chicane: Monza’s exist to tame raw speed, Monaco’s to create a rare passing chance on a claustrophobic street layout.

How do drivers attack a chicane?

The technique is all about the exit. A driver brakes hard and early on entry, turns in for the first apex, then straightens the car enough to attack the second corner in the opposite direction. Riding the kerbs is often essential, cutting across them to shorten the path and carry more speed, though too much kerb unsettles the car or damages it.

The priority is a clean exit onto whatever follows, usually a straight. Exit speed compounds all the way down the next straight, so a driver will happily sacrifice a fraction on entry to get the car pointing straight and back on the power sooner. Getting greedy at the first apex and running wide at the second is the classic chicane mistake.

For a sense of just how much speed a chicane has to bleed off, our look at the fastest F1 cars shows the velocities these corners are designed to interrupt. And if you want the next piece of trackside vocabulary, DRS in F1 explains the overtaking aid that often works hand in hand with a chicane’s braking zone.

The bottom line on chicanes

A chicane is a purpose-built speed trap in the shape of an S: alternating corners that force drivers to brake, balance the car through two apexes, and prioritise a clean exit. They exist first for safety, but the best of them, from Monza to Monaco, have become defining features of their circuits and reliable sources of overtaking. Next time you watch a driver flick left-right at the end of a straight, you are watching a chicane do its job.